06/18/2012 12:35 pm ET

Bethenny Frankel On Watching 'Real Housewives Of New York': 'It Makes Me Feel Old'

The new additions to the cast of "The Real Housewives of New York City," Aviva Drescher, Carole Radziwill and Heather Thomson, haven't been shy about making digs at the show's original stars. Radziwill, technically a princess via marriage, called Countess LuAnn de Lesseps' insistence on using her royal title "silly," while shapewear entrepreneur Thomson said she wouldn't be plugging her products on the show, a la Bethenny Frankel's tireless "Skinnygirl" promotion.

But what do the former cast members, such as Frankel, think of the new ladies?

"I don't watch it religiously but I'll sometimes catch up," Bethenny says of the fifth season on Monday's episode of her Fox talk show, according to People. "It's not anything against them. I've been busy planning the talk show and kind of doing my own thing. It was a long time ago."

Frankel, who left "Real Housewives" in 2010, continues, "I wish Jill [Zarin] the best. I wish Kelly [Bensimon] the best. Honestly, it was an experience that I'll never forget and the year with the first five of us is definitely very nostalgic. It makes me feel old and that feels like freshman year in high school."

Frankel is confident about the success of her new show, "Bethenny," despite the fact that it's airing in only six cities after failing to attract significant syndication interest. When Frankel visited "The Wendy Williams Show" last week, fellow talk-show host Williams advised her, "Either you make it and it's good, or you don't make it, and you're still a multi-millionaire."

"Oh, we're gonna make it," Frankel replied.

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